Filter system with in situ cleaning of an operating filter unit
US4830642A · kind A · utility
12Cited by
26References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1988 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Feb 19, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D46/71
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter system comprises a filter unit and a cleaning unit which cleans the filter unit while the filter unit is operating normally. The filter unit is compartmentalized. During cleaning, an individual compartment is isolated between a pair of ducts of the cleaning unit and is cleaned by applying pulses of a cleaning fluid to one of the ducts and suction to the other duct. The filter unit is rotatable relative to the cleaning unit to align successive compartments of the filter unit with the cleaning unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.